/* Reset and Base Styles */
/* basic reset to ensure consistent styling across browsers */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #ec4899;
    --accent-color: #f472b6;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Premium gradients - розово-синяя палитра */
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #ec4899 100%);
    --gradient-secondary: linear-gradient(135deg, #f472b6 0%, #ec4899 100%);
    --gradient-accent: linear-gradient(135deg, #60a5fa 0%, #f472b6 100%);
    --gradient-hero: linear-gradient(135deg, rgba(59, 130, 246, 0.95) 0%, rgba(236, 72, 153, 0.9) 50%, rgba(244, 114, 182, 0.85) 100%);
    --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    --gradient-text: linear-gradient(135deg, #3b82f6 0%, #ec4899 50%, #f472b6 100%);
    
    /* Premium shadows - розово-синие */
    --shadow-soft: 0 2px 20px rgba(59, 130, 246, 0.15);
    --shadow-medium: 0 8px 30px rgba(59, 130, 246, 0.25);
    --shadow-strong: 0 15px 50px rgba(59, 130, 246, 0.35);
    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.5);
    --shadow-glow-accent: 0 0 40px rgba(236, 72, 153, 0.6);
    
    /* Glass effect */
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

body {
    font-family: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: linear-gradient(to bottom, #ffffff 0%, #f8fafc 100%);
    background-attachment: fixed;
    overflow-x: hidden;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Cookie Notice */
.cookie-notice {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--text-dark);
    color: white;
    padding: 20px;
    z-index: 10000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.1);
}

.cookie-notice.show {
    transform: translateY(0);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.cookie-content p {
    flex: 1;
    margin: 0;
}

.cookie-content a {
    color: var(--accent-color);
    text-decoration: underline;
}

.cookie-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s;
}

.cookie-btn:hover {
    background: var(--primary-dark);
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.5), transparent);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    gap: 20px;
    overflow: visible;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    letter-spacing: -0.02em;
    flex-shrink: 0;
    white-space: nowrap;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo:hover::after {
    width: 100%;
}

.logo:hover {
    transform: translateY(-2px);
    filter: drop-shadow(0 4px 12px rgba(59, 130, 246, 0.4));
}

.nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 20px;
    align-items: center;
    white-space: nowrap;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: 8px 10px;
    border-radius: 8px;
    letter-spacing: -0.01em;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    border-radius: 2px;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(236, 72, 153, 0.1));
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.nav-link:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.nav-link:hover::before {
    width: calc(100% - 24px);
}

.nav-link:hover::after {
    opacity: 1;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: all 0.3s;
}

/* ============================================
   CLASSIC ELEGANT HERO SECTION
   ============================================ */

/* Hero Section - Classic Elegant Design */
.hero-classic {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 0 80px;
    overflow: hidden;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
}

/* Hero Background */
.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-gradient-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%, 
        rgba(248, 250, 252, 0.9) 50%, 
        rgba(241, 245, 249, 0.95) 100%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(236, 72, 153, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(244, 114, 182, 0.03) 0%, transparent 50%);
    opacity: 0.6;
}

/* Hero Content Wrapper */
.hero-content-wrapper {
    position: relative;
    z-index: 2;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 80px);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    padding: 40px 20px;
    animation: fadeInUp 1s ease-out;
}

/* Hero Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 50px;
    margin-bottom: 30px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.1);
    animation: slideDown 0.8s ease-out 0.2s both;
}

.badge-icon {
    font-size: 18px;
}

.badge-text {
    letter-spacing: -0.01em;
}

/* Hero Title */
.hero-title-classic {
    font-size: clamp(42px, 7vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--text-dark);
    margin: 0 0 24px 0;
    font-family: 'Inter', 'Poppins', sans-serif;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.title-accent {
    background: linear-gradient(135deg, #3b82f6 0%, #ec4899 50%, #f472b6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

/* Hero Subtitle */
.hero-subtitle-classic {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--text-light);
    line-height: 1.7;
    font-weight: 400;
    margin: 0 0 40px 0;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.5s both;
}

/* Hero Actions */
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
    animation: fadeInUp 1s ease-out 0.7s both;
}

.btn-hero {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: -0.01em;
}

.btn-hero-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #ec4899 100%);
    color: white;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.4);
}

.btn-hero-primary svg {
    transition: transform 0.3s ease;
}

.btn-hero-primary:hover svg {
    transform: translateX(4px);
}

.btn-hero-outline {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.15);
}

.btn-hero-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

/* Hero Stats Row */
.hero-stats-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    animation: fadeInUp 1s ease-out 0.9s both;
}

.hero-stat-box {
    text-align: center;
    min-width: 120px;
}

.stat-value {
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 800;
    background: linear-gradient(135deg, #3b82f6 0%, #ec4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

.stat-text {
    font-size: 13px;
    color: var(--text-light);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, transparent, rgba(59, 130, 246, 0.2), transparent);
}

/* Floating Language Cards */
.hero-floating-cards {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.floating-card {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(59, 130, 246, 0.15);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    animation: floatCard 6s ease-in-out infinite;
}

.card-flag {
    font-size: 32px;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1));
}

.card-text {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: 0.05em;
}

.floating-card.card-1 {
    top: 15%;
    left: 8%;
    animation-delay: 0s;
}

.floating-card.card-2 {
    top: 25%;
    right: 10%;
    animation-delay: 1.5s;
}

.floating-card.card-3 {
    bottom: 30%;
    left: 12%;
    animation-delay: 3s;
}

.floating-card.card-4 {
    bottom: 20%;
    right: 8%;
    animation-delay: 4.5s;
}

/* Scroll Down Indicator */
.hero-scroll-down {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    animation: fadeIn 1s ease-out 1.1s both;
}

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(59, 130, 246, 0.4);
    border-radius: 12px;
    position: relative;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.mouse-wheel {
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 2px;
    animation: scrollWheel 2s ease-in-out infinite;
}

.scroll-text {
    font-size: 11px;
    color: var(--text-light);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes floatCard {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(2deg);
    }
}

@keyframes scrollWheel {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(12px);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.btn {
    padding: 16px 36px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.02em;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: linear-gradient(135deg, #f472b6 0%, #ec4899 50%, #db2777 100%);
    color: white;
    box-shadow: 0 8px 25px rgba(236, 72, 153, 0.4), 0 0 20px rgba(236, 72, 153, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 35px rgba(236, 72, 153, 0.5), 0 0 30px rgba(236, 72, 153, 0.4);
    filter: brightness(1.1);
}

.btn-primary:active {
    transform: translateY(-1px) scale(0.98);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.2);
}

.btn-outline:hover {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

/* Hero Interactive - Language Selector */
.hero-interactive {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-radius: 24px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 
        0 8px 32px rgba(31, 38, 135, 0.37),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.hero-interactive::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

.hero-interactive::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.language-selector {
    position: relative;
    z-index: 1;
}

.language-selector h3 {
    color: white;
    margin-bottom: 24px;
    font-size: 28px;
    font-weight: 800;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    letter-spacing: -0.02em;
}

.language-accordion {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.accordion-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: 1;
}

.accordion-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.accordion-item:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.accordion-item:hover::before {
    opacity: 1;
}

.accordion-item.active {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    transform: translateX(8px);
}

.accordion-item.active::before {
    opacity: 1;
}

.accordion-header {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    color: white;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.accordion-header:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(5px);
}

.accordion-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.accordion-item.active .accordion-header::before {
    opacity: 1;
}

.flag-icon {
    font-size: 24px;
}

.accordion-arrow {
    margin-left: auto;
    transition: transform 0.3s;
}

.accordion-item.active .accordion-arrow {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    padding: 0 20px;
    color: white;
}

.accordion-item.active .accordion-content {
    max-height: 500px;
    padding: 20px;
}

.accordion-content p {
    margin-bottom: 15px;
    opacity: 0.95;
}

.accordion-content ul {
    list-style: none;
    padding-left: 0;
}

.accordion-content li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.accordion-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
    z-index: 1;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    font-size: 24px;
    margin-top: 10px;
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
    position: relative;
    z-index: 1;
}

.section-header::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 6s ease-in-out infinite;
    z-index: -1;
}

.section-title {
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    letter-spacing: -0.03em;
    position: relative;
    display: inline-block;
    line-height: 1.2;
    text-shadow: 0 4px 20px rgba(59, 130, 246, 0.2);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-light);
    max-width: 650px;
    margin: 0 auto;
    font-weight: 500;
    line-height: 1.7;
    letter-spacing: -0.01em;
}

/* Courses Section */
.courses {
    background: linear-gradient(to bottom, #ffffff 0%, #f8fafc 50%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.courses::before {
    content: '';
    position: absolute;
    top: 20%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 18s ease-in-out infinite;
}

.courses::after {
    content: '';
    position: absolute;
    bottom: 10%;
    left: -5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.course-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.08),
        0 0 0 1px rgba(0, 0, 0, 0.05);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.course-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.3), rgba(236, 72, 153, 0.3), rgba(244, 114, 182, 0.3));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 1;
}

.course-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 
        0 20px 60px rgba(59, 130, 246, 0.3),
        0 0 40px rgba(59, 130, 246, 0.15);
}

.course-card:hover::before {
    opacity: 1;
}

.course-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    transition: left 0.6s ease;
    z-index: 2;
}

.course-card:hover::after {
    left: 100%;
}

.course-image {
    width: 100%;
    height: 200px;
    position: relative;
    overflow: hidden;
}

.course-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(59, 130, 246, 0.2) 100%);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 1;
}

.course-card:hover .course-image::after {
    opacity: 1;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    filter: brightness(0.95);
}

.course-card:hover .course-image img {
    transform: scale(1.15) rotate(1deg);
    filter: brightness(1.05);
}

.course-content {
    padding: 32px 28px;
    position: relative;
    z-index: 1;
}

.course-content h3 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.course-content > p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.course-features {
    list-style: none;
    margin-bottom: 20px;
}

.course-features li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-light);
}

.course-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    font-size: 18px;
}

.course-price {
    font-size: 32px;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    letter-spacing: -0.02em;
}

.course-price::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.course-card:hover .course-price::after {
    transform: scaleX(1);
}

/* Why Choose Us */
.why-choose {
    background: linear-gradient(to bottom, #ffffff 0%, #f9fafb 100%);
    position: relative;
    overflow: hidden;
}

.why-choose::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 8s ease-in-out infinite;
}

.why-choose::after {
    content: '';
    position: absolute;
    bottom: 10%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite reverse;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 1;
}

.feature-item {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: 20px;
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.08),
        0 0 0 1px rgba(0, 0, 0, 0.05);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.feature-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.feature-item:hover::before {
    opacity: 1;
}

.feature-item:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: 
        0 20px 50px rgba(59, 130, 246, 0.25),
        0 0 30px rgba(59, 130, 246, 0.15);
}

.feature-icon {
    font-size: 64px;
    margin-bottom: 24px;
    display: inline-block;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 4px 10px rgba(59, 130, 246, 0.3));
    position: relative;
    z-index: 1;
}

.feature-item:hover .feature-icon {
    transform: scale(1.2) rotate(5deg);
    filter: drop-shadow(0 8px 20px rgba(59, 130, 246, 0.5));
}

.feature-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.feature-item p {
    color: var(--text-light);
    line-height: 1.7;
}

/* About Section */
.about {
    background: linear-gradient(to bottom, #ffffff 0%, #f8fafc 100%);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 20%;
    left: -5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 18s ease-in-out infinite;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 
        0 20px 60px rgba(59, 130, 246, 0.3),
        0 0 40px rgba(59, 130, 246, 0.15);
    position: relative;
    transform: perspective(1000px) rotateY(-5deg);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(236, 72, 153, 0.2));
    opacity: 0;
    transition: opacity 0.6s ease;
    z-index: 1;
    border-radius: 24px;
}

.about-image:hover {
    transform: perspective(1000px) rotateY(0deg) scale(1.05);
    box-shadow: 
        0 30px 80px rgba(59, 130, 246, 0.4),
        0 0 50px rgba(59, 130, 246, 0.25);
}

.about-image:hover::before {
    opacity: 1;
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    filter: brightness(0.95) contrast(1.05);
}

.about-image:hover img {
    transform: scale(1.1);
    filter: brightness(1.05) contrast(1.1);
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.8;
}

.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(248, 250, 252, 0.9));
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 
        0 8px 30px rgba(59, 130, 246, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.2), transparent);
    transition: left 0.6s ease;
}

.stat-item:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 
        0 15px 40px rgba(59, 130, 246, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 1);
}

.stat-item:hover::before {
    left: 100%;
}

.stat-number {
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    letter-spacing: -0.03em;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(59, 130, 246, 0.3);
}

.stat-label {
    color: var(--text-light);
    font-size: 14px;
}

/* Teachers Section */
.teachers {
    background: linear-gradient(to bottom, #f9fafb 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.teachers::before {
    content: '';
    position: absolute;
    top: -15%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 18s ease-in-out infinite;
}

.teachers::after {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

.teachers-slider {
    position: relative;
    overflow: hidden;
    width: 100%;
}

.teachers-track {
    display: flex;
    gap: 30px;
    width: max-content;
    /* transition управляется через JavaScript для бесконечной прокрутки */
    will-change: transform;
}

.teacher-card {
    min-width: 260px;
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(0, 0, 0, 0.05);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.teacher-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.3), rgba(236, 72, 153, 0.3));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 1;
}

.teacher-card:hover {
    transform: translateY(-12px) rotate(1deg);
    box-shadow: 
        0 25px 60px rgba(59, 130, 246, 0.3),
        0 0 40px rgba(59, 130, 246, 0.2);
}

.teacher-card:hover::before {
    opacity: 1;
}

.teacher-image {
    width: 200px;
    height: 200px;
    overflow: hidden;
    position: relative;
    margin: 20px auto;
    border-radius: 50%;
}

.teacher-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(59, 130, 246, 0.3) 100%);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 1;
}

.teacher-card:hover .teacher-image::after {
    opacity: 1;
}

.teacher-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    filter: grayscale(20%) brightness(0.95);
}

.teacher-card:hover .teacher-image img {
    transform: scale(1.15);
    filter: grayscale(0%) brightness(1.05);
}

.teacher-info {
    padding: 25px;
}

.teacher-info h3 {
    font-size: 22px;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.teacher-role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 12px;
    font-size: 14px;
}

.teacher-bio {
    color: var(--text-light);
    line-height: 1.7;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(59, 130, 246, 0.2);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 28px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 
        0 8px 25px rgba(59, 130, 246, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    z-index: 10;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.slider-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.slider-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-50%) scale(1.15);
    box-shadow: 
        0 12px 35px rgba(59, 130, 246, 0.5),
        0 0 30px rgba(59, 130, 246, 0.4);
    border-color: var(--primary-color);
}

.slider-btn:hover::before {
    opacity: 1;
}

.slider-btn:active {
    transform: translateY(-50%) scale(1.05);
}

.slider-btn.prev {
    left: -25px;
}

.slider-btn.next {
    right: -25px;
}

/* Reviews Section */
.reviews {
    background: linear-gradient(to bottom, #ffffff 0%, #f9fafb 50%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.reviews::before {
    content: '';
    position: absolute;
    top: 10%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 16s ease-in-out infinite;
}

.reviews::after {
    content: '';
    position: absolute;
    bottom: 20%;
    right: -5%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 14s ease-in-out infinite reverse;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.review-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 252, 0.95));
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 24px;
    box-shadow: 
        0 8px 30px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.5);
    overflow: hidden;
}

.review-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.15), transparent);
    transition: left 0.6s ease;
}

.review-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 
        0 25px 60px rgba(59, 130, 246, 0.25),
        0 0 40px rgba(59, 130, 246, 0.15);
}

.review-card:hover::before {
    left: 100%;
}

.review-card::after {
    content: '"';
    position: absolute;
    top: 20px;
    left: 30px;
    font-size: 120px;
    font-weight: 900;
    color: rgba(59, 130, 246, 0.1);
    line-height: 1;
    font-family: Georgia, serif;
    z-index: 0;
}

.review-stars {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 24px;
    margin-bottom: 20px;
    filter: drop-shadow(0 2px 8px rgba(236, 72, 153, 0.4));
    position: relative;
    z-index: 1;
    letter-spacing: 4px;
}

.review-text {
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 24px;
    font-style: italic;
    font-size: 16px;
    position: relative;
    z-index: 1;
    font-weight: 500;
}

.review-author {
    position: relative;
    z-index: 1;
}

.review-author strong {
    display: block;
    color: var(--text-dark);
    margin-bottom: 6px;
    font-weight: 700;
    font-size: 17px;
    letter-spacing: -0.01em;
}

.review-author span {
    color: var(--text-light);
    font-size: 14px;
    font-weight: 500;
}

/* Contact Section */
.contact {
    background: linear-gradient(to bottom, #f9fafb 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.contact::after {
    content: '';
    position: absolute;
    bottom: -15%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 18s ease-in-out infinite reverse;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-item {
    display: flex;
    gap: 24px;
    margin-bottom: 35px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.6s ease;
}

.contact-item:hover {
    transform: translateX(10px);
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.2);
}

.contact-item:hover::before {
    left: 100%;
}

.contact-icon {
    font-size: 40px;
    flex-shrink: 0;
    filter: drop-shadow(0 4px 8px rgba(59, 130, 246, 0.3));
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-item:hover .contact-icon {
    transform: scale(1.2) rotate(5deg);
    filter: drop-shadow(0 6px 12px rgba(102, 126, 234, 0.5));
}

.contact-item h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.contact-item p {
    color: var(--text-light);
    line-height: 1.7;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

.contact-item a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.contact-form {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 252, 0.95));
    backdrop-filter: blur(20px);
    padding: 50px;
    border-radius: 24px;
    box-shadow: 
        0 20px 60px rgba(102, 126, 234, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite;
}

.contact-form::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 12s ease-in-out infinite reverse;
}

.form-group {
    margin-bottom: 20px;
}

.form-group {
    position: relative;
    z-index: 1;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid rgba(229, 231, 235, 0.8);
    border-radius: 12px;
    font-family: inherit;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
    color: var(--text-dark);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
    opacity: 0.7;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 
        0 0 0 4px rgba(102, 126, 234, 0.1),
        0 4px 15px rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23334155' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 45px;
}

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: white;
    padding: 80px 0 30px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.5), transparent);
}

.footer::after {
    content: '';
    position: absolute;
    bottom: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 10px;
}

.footer-section {
    position: relative;
    z-index: 1;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    display: inline-block;
    padding: 2px 0;
}

.footer-section a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), #fbbf24);
    border-radius: 2px;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-section a:hover {
    color: #fbbf24;
    transform: translateX(5px);
}

.footer-section a:hover::before {
    width: 100%;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-15px);
    }
    60% {
        transform: translateX(-50%) translateY(-8px);
    }
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(120deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(240deg);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% center;
    }
    100% {
        background-position: 200% center;
    }
}

@keyframes shine {
    0% {
        transform: translateX(-100%);
    }
    50%, 100% {
        transform: translateX(100%);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
    }
    50% {
        box-shadow: 0 0 40px rgba(102, 126, 234, 0.8), 0 0 60px rgba(118, 75, 162, 0.6);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

/* Responsive Design - Tablets */
@media (max-width: 1024px) {
    .hero-classic {
        padding: 100px 0 60px;
    }
    
    .hero-content {
        padding: 30px 20px;
    }
    
    .hero-title-classic {
        font-size: clamp(38px, 6vw, 60px);
    }
    
    .hero-stats-row {
        gap: 20px;
        padding: 25px 15px;
    }
    
    .floating-card {
        display: none;
    }
}

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        display: flex;
    }
    
    .nav.active {
        transform: translateX(0);
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .slider-btn.prev {
        left: 10px;
    }
    
    .slider-btn.next {
        right: 10px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .teachers-track {
        flex-direction: column;
    }
    
    .teacher-card {
        min-width: 100%;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .hero-classic {
        padding: 90px 0 50px;
        min-height: auto;
    }
    
    .hero-content {
        padding: 20px 15px;
    }
    
    .hero-title-classic {
        font-size: clamp(32px, 8vw, 48px);
        margin-bottom: 20px;
    }
    
    .hero-subtitle-classic {
        font-size: clamp(15px, 3vw, 18px);
        margin-bottom: 30px;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 12px;
        margin-bottom: 40px;
    }
    
    .btn-hero {
        width: 100%;
        justify-content: center;
        padding: 14px 28px;
    }
    
    .hero-stats-row {
        flex-direction: column;
        gap: 20px;
        padding: 25px 20px;
    }
    
    .hero-stat-divider {
        display: none;
    }
    
    .hero-stat-box {
        min-width: auto;
        width: 100%;
    }
    
    .floating-card {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-classic {
        padding: 80px 0 40px;
    }
    
    .hero-badge {
        padding: 8px 16px;
        font-size: 12px;
        margin-bottom: 20px;
    }
    
    .hero-title-classic {
        font-size: 32px;
        line-height: 1.15;
    }
    
    .hero-subtitle-classic {
        font-size: 15px;
        margin-bottom: 25px;
    }
    
    .hero-actions {
        margin-bottom: 35px;
    }
    
    .btn-hero {
        padding: 12px 24px;
        font-size: 15px;
    }
    
    .hero-stats-row {
        padding: 20px 15px;
        gap: 15px;
    }
    
    .stat-value {
        font-size: 24px;
    }
    
    .stat-text {
        font-size: 11px;
    }
    
    .hero-scroll-down {
        bottom: 30px;
    }
}